According to an exemplary embodiment of the present disclosure, a modularized temple of spectacles includes: a function unit configured to perform a preset function; a sensor unit provided to correspond to a function of the function unit and receiving a stimulus from the outside; an output unit outputting a signal corresponding to the function set in the function unit and the stimulus received by the sensor unit; and a battery providing power to an eyewear, wherein the modularized temple of spectacles is configured to be attachable to or detachable from an eyewear body of the eyewear. As a result, a user may replace and use modularized temple of spectacles configured to perform different functions depending on a user purpose.